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  • Square machine screw nuts shall have tops and bottoms flat, without chamfer. The bearing surface shall be perpendicular to the axis of the threaded hole pitch cylinder within a tolerance of 4 deg.
  • Where specifying nominal size in decimals, zeros preceding decimal and in the fourth decimal place shall be omitted.
Square and Hex Machine Screw Nuts
Unit of Measure
1 

Item #

Description

Nominal Size or Basic Thread Dia.

Basic (F)

Max. (G)

Max. (H)

SMSN00600XXX N/A Square Machine Screw Nut, with 0.221" Width Across Corner N/A No. 0 N/A 5/32 in N/A 0.221 in N/A 0.050 in
SMSN00730XXX N/A Square Machine Screw Nut, with 0.221" Width Across Corner N/A No. 1 N/A 5/32 in N/A 0.221 in N/A 0.050 in
SMSN00860XXX N/A Square Machine Screw Nut, with 0.265" Width Across Corner N/A No. 2 N/A 3/16 in N/A 0.265 in N/A 0.066 in
SMSN00990XXX N/A Square Machine Screw Nut, with 0.265" Width Across Corner N/A No. 3 N/A 3/16 in N/A 0.265 in N/A 0.066 in
SMSN01120XXX N/A Square Machine Screw Nut, with 0.354" Width Across Corner N/A No. 4 N/A 1/4 in N/A 0.354 in N/A 0.098 in
SMSN01250XXX N/A Square Machine Screw Nut, with 0.442" Width Across Corner N/A No. 5 N/A 5/16 in N/A 0.442 in N/A 0.114 in
SMSN01380XXX N/A Square Machine Screw Nut, with 0.442" Width Across Corner N/A No. 6 N/A 5/16 in N/A 0.442 in N/A 0.114 in
SMSN01640XXX N/A Square Machine Screw Nut, with 0.486" Width Across Corner N/A No. 8 N/A 11/32 in N/A 0.486 in N/A 0.130 in
SMSN01900XXX N/A Square Machine Screw Nut, with 0.530" Width Across Corner N/A No. 10 N/A 3/8 in N/A 0.530 in N/A 0.130 in
SMSN02160XXX N/A Square Machine Screw Nut, with 0.619" Width Across Corner N/A No. 12 N/A 7/16 in N/A 0.619 in N/A 0.161 in
SMSN02500XXX N/A Square Machine Screw Nut, with 0.619" Width Across Corner N/A 1/4 in N/A 7/16 in N/A 0.619 in N/A 0.193 in
SMSN03125XXX N/A Square Machine Screw Nut, with 0.795" Width Across Corner N/A 5/16 in N/A 9/16 in N/A 0.795 in N/A 0.225 in
SMSN03750XXX N/A Square Machine Screw Nut, with 0.884" Width Across Corner N/A 3/8 in N/A 5/8 in N/A 0.884 in N/A 0.257 in
Unit of Measure
1